The version "Neue Tarif.txt.vbs" creates in C:\MIRC a file named SCRIPT.INI and then copies itself as C:\%WINDIR%\Neue Tarife.txt.vbs. Then it makes the RUN entry in the registry:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Current Version\Run\neue Tarife.txt.vbs
and in HEKY_CURRENT_USER\Software\ the entry "Mirqued"="1".